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Andreev and Majorana Weyl crossings in multi-terminal Josephson junctions

Date : Tuesday, July 9th, 2019 11:00 am - 12:00 pm Place : Seminar Room 5 (A615), 6th Floor, ISSP Lecturer : Dr. Manuel Houzet Affiliation : INAC/PHELIQS, CEA and Grenoble Alpes University Committee Chair : Takeo KATO (63258)
e-mail: kato@issp.u-tokyo.ac.jp

We analyze the Andreev spectrum in a four-terminal Josephson junction between conventional and topological superconductors. We find that a topologically protected crossing in the space of three superconducting phase differences can occur between the two Andreev bound states with lower energy. We discuss the possible detection of this crossing through the nonlocal conductance quantization between two voltage-biased terminals.


(Published on: Friday July 5th, 2019)